Patents by Inventor Simpert Ludemann
Simpert Ludemann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7923388Abstract: Polyolefin fiber fabrics can be endowed with oil-repellent properties by treating them first in a plasma atmosphere to raise their surface tension, then with a polyorganosiloxane containing polyoxyalkylene groups and finally with a polyacrylate or polyurethane containing perfluoroalkyl radicals. The fabrics thus obtained are useful for medical as well as other applications.Type: GrantFiled: May 9, 2007Date of Patent: April 12, 2011Assignee: Huntsman Textile Effects (Germany) GmbHInventors: Simpert Ludemann, Rule Niederstadt, Jurgen Riedmann, Daniel Wilson
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Patent number: 7795342Abstract: The use is described of aqueous dispersions in combination with fluoropolymers for oil- and water-repellent finishing of fiber materials. These dispersions have a long shelf life and contain a composition which is preparable by reaction of polyfunctional isocyanates with a deficiency of comparatively long-chain monohydric alcohols, subsequent reaction with a deficiency of a ketone oxime and final reaction with polyhydric alcohols or amino alcohols.Type: GrantFiled: July 6, 2004Date of Patent: September 14, 2010Assignee: Huntsman International LLCInventors: Rolf Moors, Simpert Lüdemann, Wilhelm Artner, Andreas Eisele, Edeltraud Schidek, Heinz Gaugenrieder
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Publication number: 20100190879Abstract: Compositions according to the invention comprise water, a polyurethane or poly(meth)acrylate having perfluoroalkyl groups and a special siloxane. The treatment of fiber materials, in particular of nonwovens made of polypropylene, leads to articles which have oil-, water- and alcohol-repellency properties and can be used in the medical sector.Type: ApplicationFiled: September 11, 2008Publication date: July 29, 2010Applicant: Huntsman Textile Effects (Germany) GmbHInventors: Simpert Ludemann, Rule Niederstadt, Jurgen Riedmann, Daniel Wilson
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Publication number: 20090311211Abstract: Polyorganosiloxanes containing urea groups can be obtained in the form of aqueous dispersions by firstly dissolving them in an organic solvent, then dispersing this solution with water with co-use of auxiliaries, subjecting the mixture to homogenization and then at least partially removing the organic solvent. The aqueous dispersions prepared in this way are suitable as additive for detergents, fabric softeners, haircare compositions, shampoos and for textile finishing.Type: ApplicationFiled: November 19, 2005Publication date: December 17, 2009Applicant: Huntsman Textile Efficts (Grmany) GmbHInventors: Harald Chrobaczek, Rule Niederstadt, Theodor Angele, Simpert Lüdemann
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Publication number: 20090264037Abstract: Polyolefin fiber fabrics can be endowed with oil-repellent properties by treating them first in a plasma atmosphere to raise their surface tension, then with a polyorganosiloxane containing polyoxyalkylene groups and finally with a polyacrylate or polyurethane containing perfluoroalkyl radicals. The fabrics thus obtained are useful for medical as well as other applications.Type: ApplicationFiled: May 9, 2007Publication date: October 22, 2009Applicant: Huntsman Textile Effects (Germany) GmbHInventors: Simpert Ludemann, Rule Niederstadt, Jurgen Riedmann, Daniel Wilson
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Publication number: 20090249556Abstract: Compositions which can be obtained by a specific process from water, guanidine phosphate, amidosulfonic acid or ammonium sulfamate and ammonium sulfate are described. The compositions are suitable for the flame-inhibiting finishing of fiber materials, in particular of textile fabrics, e.g. those made of polyester.Type: ApplicationFiled: November 22, 2005Publication date: October 8, 2009Applicant: HUNTSMAN TEXTILE EFFECTS (GERMANY) GMBHInventors: Salman Dermeik, Simpert Lüdemann
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Publication number: 20060155046Abstract: The use is described of aqueous dispersions in combination with fluoropolymers for oil- and water-repellent finishing of fiber materials. These dispersions have a long shelf life and contain a composition which is peparable by reaction of polyfunctional isocyanates with a deficiency of comparatively long-chain monohydric alcohols, subsequent reaction with a deficiency of a ketone oxime and final reaction with polyhydric alcohols or amino alcohols.Type: ApplicationFiled: July 6, 2004Publication date: July 13, 2006Inventors: Rolf Moors, Simpert Ludemann, Wilhelm Artner, Andreas Eisele, Edeltraud Schidek, Heinz Gaugenrieder
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Patent number: 7053148Abstract: Fiber materials in the form of fabrics receive, as a result of treatment with compositions according to the invention, a pleasant soft hand and excellent oil-and water-repelling properties with good permanence. The compositions can be obtained by a) preparing a solution of a polysiloxane and an extender with blocked isocyanate groups in an organic solvent, b) dispersing this solution in water, c) removing the organic solvent and d) combining the aqueous dispersion obtained with a second aqueous dispersion which comprises a polymer with perfluoroalkyl groups. One variant of this preparation process consists in cousing a polymer with perfluoroalkyl groups as early as in step a). In this case, step d) can be omitted.Type: GrantFiled: August 3, 2002Date of Patent: May 30, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Franz Dirschl, Edeltraud Schidek, Thu Thao Reimann-Dang, Rolf Moors, Simpert Lüdemann, Wilhelm Artner, Heinz Gaugenrieder
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Publication number: 20040249165Abstract: Fiber materials in the form of fabrics receive, as a result of treatment with compositions according to the invention, a pleasant soft hand and excellent oil- and water-repelling properties with good permanence. The compositions can be obtained by a) preparing a solution of a polysiloxane and an extender with blocked isocyanate groups in an organic solvent, b) dispersing this solution in water, c) removing the organic solvent and d) combining the aqueous dispersion obtained with a second aqueous dispersion which comprises a polymer with perfluoroalkyl groups. One variant of this preparation process consists in cousing a polymer with perfluoroalkyl groups as early as in step a). In this case, step d) can be omitted.Type: ApplicationFiled: December 4, 2003Publication date: December 9, 2004Inventors: Franz Dirschl, Edeltraud Schidek, Thu Thao Reimann-Dang, Rolf Moors, Simpert Ludemann, Wilhelm Artner, Heinz Gaugenrieder
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Patent number: 6783806Abstract: Compositions are described with organopolysiloxanes which contain crosslinked units and are further crosslinkable. The compositions further contain a polyurethane containing blocked isocyanate groups. They are useful for treating fiber materials, especially textile sheet materials, and can be applied thereto in the form of aqueous solutions or dispersions. Textiles which are 50 to 100% by weight wool and have been finished with the compositions exhibit low shrinkage and low felting tendency during washing operations and also a pleasant, soft hand.Type: GrantFiled: October 2, 2002Date of Patent: August 31, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Simpert Lüdemann, Jürgen Riedmann, Harald Chrobaczek, Theodor Angele, Lee Howarth
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Publication number: 20030155547Abstract: Compositions are described with organopolysiloxanes which contain crosslinked units and are further crosslinkable. The compositions further contain a polyurethane containing blocked isocyanate groups. They are useful for treating fiber materials, especially textile sheet materials, and can be applied thereto in the form of aqueous solutions or dispersions. Textiles which are 50 to 100% by weight wool and have been finished with the compositions exhibit low shrinkage and low felting tendency during washing operations and also a pleasant, soft hand.Type: ApplicationFiled: October 2, 2002Publication date: August 21, 2003Inventors: Simpert Ludemann, Jurgen Riedmann, Harald Chrobaczek, Theodor Angele, Lee Howarth
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Patent number: 6579325Abstract: Compositions are described with organopolysiloxanes which contain crosslinked units and are further crosslinkable. The compositions further contain reaction products of diepoxides and diamines. They are useful for treating fiber materials, especially textile sheet materials, and can be applied thereto in the form of aqueous solutions or dispersions. Textiles which are 50 to 100% by weight wool and have been finished with the compositions exhibit low shrinkage and low felting tendency during washing operations.Type: GrantFiled: August 3, 2000Date of Patent: June 17, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Simpert Lüdemann, Harald Chrobaczek, Theodor Angele, Jürgen Riedmann
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Patent number: 6387999Abstract: Compositions comprising an ester with perfluoroalkyl groups and an oligo- or polyurethane which may likewise contain perfluoroalkyl groups are useful for the oil and water repellant finishing of sheetlike textile materials. The compositions may additionally include acrylic polymers having perfluoroalkyl groups and extenders. Especially the use of nonionic aqueous dispersions of the compositions makes it possible to obtain textiles with little if any effect losses after mechanical abrasion and good LAD effects.Type: GrantFiled: September 25, 2000Date of Patent: May 14, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Franz Dirschl, Simpert Lüdemann, Edeltraud Schidek, Heinz Gaugenrieder, Wilhelm Artner
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Patent number: 6306958Abstract: Aqueous dispersions comprising as component A) a compound containing two or more blocked isocyanate groups in the molecule and as component B) a compound obtainable by reacting a diepoxy compound with a diamine or polyamine and subsequently reacting the resulting reaction product with an acid and possibly as component C) a dispersant are suited together with fluorine containing oligomers or polymers for the oil-, water- and soil-repellent finishing of fiber materials.Type: GrantFiled: December 16, 1999Date of Patent: October 23, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Franz Dirschl, Franz Mosch, Wilhelm Artner, Edeltraud Schidek, Heinz Gaugenrieder, Simpert Lüdemann, Erich Rössler
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Patent number: 6056788Abstract: Creases with excellent resistance to washing processes can be produced in 30 to 100% by weight wool fabrics by means of a specific process. The fabrics are preferably in the form of garments; the process can be used to produce trouser creases, for example. The process consists in applying at least one compound having isocyanate groups to the fabric and pressing creases into the fabric under certain moisture and temperature conditions.Type: GrantFiled: March 4, 1998Date of Patent: May 2, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Erich Rossler, Simpert Ludemann, Jurgen Riedmann, Hans-Peter Rohring
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Patent number: 5112930Abstract: Modified polyurethanes containing perfluoroaliphatic groups which are obtained by reacting oligo(poly)urethanes containing free hydroxyl or isocyanate groups and perfluoroaliphatic groups with di/polyfunctional polysiloxanes at elevated temperatures with conversion of all the reactive groups of the urethane are used for the oil- and water-repellent finishing of fiber materials, conferring on these materials thus treated not only laundering- and drycleaning-stable effects but also in particular a very soft, full hand of very good surface smoothness, these excellent hand effects being further optimized by the addition of a polyethylene dispersion and/or of further customary textile assistants, in particular water-repellent fluorocarbon compounds.Type: GrantFiled: March 11, 1991Date of Patent: May 12, 1992Assignee: Ciba-Geigy CorporationInventors: Simpert Ludemann, Michael Bernheim, Bernhard Sandner, Erich Rossler, Hans-Burkhardt Vogel
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Patent number: 5019428Abstract: Modified polyurethanes containing perfluoroaliphalic groups which are obtained by reacting oligo(poly)urethanes containing free hydroxyl or isocyanate groups and perfluoroaliphatic groups with di/polyfunctional polysiloxanes at elevated temperatures with conversion of all the reactive groups of the urethane are used for the oil- and water-repellent finishing of fiber materials, conferring on these materials thus treated not only laundering- and drycleaning-stable effects but also in particular a very soft, full hand of very good surface smoothness, these excellent hand effects being further optimized by the addition of a polyethylene dispersion and/or of further customary textile assistants, in particular water-repellent fluorocarbon compounds.Type: GrantFiled: January 25, 1989Date of Patent: May 28, 1991Assignee: Ciba-Geigy CorporationInventors: Simpert Ludemann, Michael Bernheim, Bernhard Sandner, Erich Rossler, Hans-Burkhardt Vogel
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Patent number: 4895927Abstract: The present invention contains a process for manufacturing a water-soluble, self-crosslinking, polymeric condensation product by reacting 1 mole di-C.sub.1-4 -alkylamino-C.sub.24 alkyl(meth)acrylates with 0.3 to 1.5 mol di-C.sub.1-3 -alkyl-phosphonates in the presence of water under heating up to a remarkable increase of the viscosity.If aqueous solutions of these condensation products are used for the treatment of fibrous materials, a very high antistatic effect is imparted to them with only small changes of shade and a very good dry- and wet rubbing fastness as well as water-fastness. The effects show a good permanency.Type: GrantFiled: March 25, 1988Date of Patent: January 23, 1990Assignee: Ciba-Geigy CorporationInventors: Simpert Ludemann, Michael Bernheim